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Table 3 Best-corrected visual acuity in the surgical eye and the non-surgical eye prior to surgery in patients reporting minor or significant preoperative seeing problems

From: Cost-utility of routine cataract surgery

   Patients with no or only minor subjective preoperative seeing problems n = 140 Patients with significant subjective preoperative seeing problems n = 79 Significance
Mean best corrected visual acuity in the surgical eye Snellen 0.21 (0.14) 0.17 (0.12)  
  LogMAR 0.88 (0.59) 0.94 (0.52) N.S.
Mean best corrected visual acuity in the non-surgical eye Snellen 0.57 (0.24) 0.35 (0.24)  
  LogMAR 0.30 (0.23) 0.58 (0.39) p < 0.001
  1. Values are means with standard deviations (SD) in parentheses expressed both as Snellen units as well as LOGarithm of Minimal Angle of Resolution (LogMAR) units. Patients with minor preoperative seeing problems = levels 1 and 2 of the seeing dimension; patients with significant preoperative seeing problems = levels 3 – 5 of the seeing dimension.